Q: Fact: white blood cell destroys pathogens in the body
Question: What do white blood cells allow to stay in the body?

A: oxygen


Q: Fact: decomposition increases amount of organic matter in soil
Question: Organic mass is gained in the earth by insect

A: garbage eaters


Q: Fact: friction acts to counter the motion of two objects when their surfaces are touching
Question: friction acts to counter the motion of two objects when their surfaces are what?

A: converging


Q: Fact: all cells perform cellular respiration
Question: Cellular respiration releases

A:
waste